The next asteroid won’t come with a warning siren. What happens after it’s discovered could determine everything.

The dinosaurs were wiped out by an asteroid, but does that mean we risk suffering the same fate - and should you be worried about the possibility? Leah Crane sets the matter straight ...

A 140-foot asteroid is set to sweep past Earth today, and it seems everyone is taking notice. Astronomers have been tracking the space rock, officiall.

NASA officials and planetary defense experts have been discussing a major gap in Earth’s asteroid detection efforts: a large number of medium-sized near-Earth asteroids remain undiscovered. Reports ...

A NASA planetary expert has revealed that humankind has no way to protect against a city-killer asteroid if it were to head ...

There are four Near-Earth Objects (NEOs) that have a diameter larger than 10 kilometers (6.2 miles); they are so big that ...

The stuff that can ruin your day from space isn’t “everything out there”—it’s a specific club: Near-Earth Objects that can cross our orbit. Most asteroids live safely in the main belt, but some get ...

Scientists classify asteroids measuring 140 metres or more as "city-killers" because of the scale of destruction they can unleash ...

In a stark and widely reported warning, NASA’s planetary defence chief has revealed that Earth currently has no reliable way to stop thousands of “cit.

NASA officials warn thousands of undetected “city killer” asteroids may be circling near Earth. With limited deflection tools ready, are we prepared if one suddenly shifts onto a collision course?

NASA's top planetary defense expert reveals the biggest threat isn't Hollywood-style doomsday rocks, but undiscovered 'city-killer' asteroids. While large and small threats are known, an estimated 25, ...